dronesplitter said:I thought that too but my microSDHC card with SD adapter reads fine in the front SD slot on the Wii to load apps with HBC, but definitely does not load any apps if I put it in my wiikey sd (gecko) in the memory card slot with HBC. So, reads fine without wiikey for HBC but doesn't with it, not bringing swiss into the picture at all. That's what made me believe the wiikey adapter is not working right for some reason.
sd/sdhc has multiple transfer modes. The only one that gamecube controllers support is spi mode.
spi is optional on microsd/sdhc, so the microsd/sdhc manufacturers have no obligation to support it, therefore most devices don't require it & there is no demand for it.
I'm not going to say that no micro cards support spi, but that might as well be the case.